MACC1 and renal pelvis carcinoma: The average optical density (AOD) of immunohistochemical (IHC) staining strength of MACC1 was measured quantitatively by Image Pro Plus in renal pelvis carcinoma (RPC) tissue specimens, adjacent non-tumorous renal pelvis epithelial tissue (ANRPET) and normal renal pelvis epithelial tissue (NRPET) specimens.